document.write( "Question 499209: Resturant bill including 20% tip is $180.00, what was the bill before the tip? I don't know how to setup the problem to solve \n" ); document.write( "
Algebra.Com's Answer #337464 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Resturant bill including 20% tip is $180.00, what was the bill before the tip? \n" ); document.write( ". \n" ); document.write( "Let x = amount ($) before tip \n" ); document.write( "then \n" ); document.write( "x + .20x = 180 \n" ); document.write( "x(1+.20) = 180 \n" ); document.write( "x(1.2) = 180 \n" ); document.write( "x = 180/1.2 \n" ); document.write( "x = $150 \n" ); document.write( " |